Giant Australian cuttlefish. Their length can reach 60 cm and weight up to 10 kg.

Here are some interesting facts about them:
1. Cuttlefish have three hearts and green blood.
2. Cuttlefish are able to perceive the polarization of light, have no blind spots and see 360 ​​degrees.
3. They can instantly change color and shape to suit their surroundings.
4. Their lifespan is only 1–2 years and only one breeding cycle.
5. Cuttlefish can swim in different ways. In case of danger, cuttlefish suck water into their body cavity and throw it out through a funnel, which leads to a sharp backward movement. Another swimming method is to gently wiggle the side fins. This is how they swim when nothing threatens them.